package com.spring5;

public class UserDaoImpl implements UserDao {

  @Override
  public int add(int a, int b) {
    System.out.println("add方法执行了.....");
    return a + b;
  }

  @Override
  public String update(String id) {
    System.out.println("update方法执行了.....");
    return id;
  }
}
